Slime-saving device for ore-concentrators.



PATENTED JUNE 2. 1903'.

B. E. DUGGANY. SLIME SAVIN'G- DEVICE FOR ORE GONGE-NTEATORS.

7 APPLICATION FILED MAR: 19, 1907.

2 SHEETS-SHEET 1H 4 wuautoz PATENTEDJUNEZ, 1908. v B. E. DUGGANn SLIME SAVING DEVICE FOR ORE GONGENTRATORS.

APPLIUATION FILED MAR, 19, 1907.

\ z SHEETS-SHEET 2.

"F1En5 21W" gases l arn-iii? smith-3E BERT E. DUGG-AN, OF TELLURIDE, GOLO RADO.

SLIME-SAVING- DEVICE FOR ORE-CONCENTRATORS.

To all whom it may concern:

Be it known that I, BERT E. DUeoAiv, a citizen of the United States, residing at Telluride, in. the county of San Miguel and State of Colorado, have invented certain new and useful improvements in Slime-S aving Devices for Ure-Concentrators, of which the following is a speciiication, reference being had therein to the accompanying drawing.

My invention relates to improvements in ore concentrating apparatus and more particularly to a device for use in connection with concentrating tables, or the like, for collecting and saving the 'slimes which carry floating gold or other metal, or any other valuablesubstance which is not saved by the present concentrators.

The object of the invention is to provide a simple and practical device of this character which will skim the slime from the pulp passing over the concentrating table and direct it into a suitable settling box or tank.

Another object of the invention is to provide a device of this character in the form of an attachment which may be readily applied to concentrators now in use and which may be adjusted to effect the desired result.

Further objects and advantages of chainvention, as well the structural features by means of which these objects are attained, will be made clear by an exaniinationof the following specification, taken in connection with the accompanying drawings, in, which Figure l is a plan view of the rear or tailings end of a well known form of concentrator showing the application of my invention thereto; Fig. 2 is a side elevation of the same, with parts in section; Fig. 3 is an end view; Fig. a a perspective view of the slime skimming device; on the plane indicated by the line 55 in Fig. 1; and Fig. 6 is a vertical section taken on. the plane ihdicated by the line 66 in Fig. 1.

While. my invention may be adapted for use upon an orc concentrator of any description it is here shown applied to one of the well known form having a stationary frame 1 and a movable frame 2 suitably mounted for .either reciprocatory or swinging movement Specification of Letters Patent.

Application filed March 19, 1907,

l ig. 5 is a detail section taken- .Patented. June 2, 1908.

Serial No. 363,198.

it may beotherwise mounted. Any suitable comprises two diverging deflector arms 5' which project from the inner end of a trough or spout 6. As shown in Fig. 4, the parts 5, 6 are formed from a single piece of sheet metal, the spout 6 being of rectangular form in cross section and havingoutwardly proj octing horizontal flanges 7, and the arms 5 being angular in cross section havmg horizontal flanges 8 forming continuations of the flanges hand forwardly and downwardly inclined portions or plates 9 whichare adapted to project into the pulp passing over the con oentrator table for the purpose of skimming the slime therefrom and direct it into the trough 'or spout 6. While the present embodiment of the invention comprises a single spout arranged between two deflecting arms it will be u derstood that any number of such spouts and arms may be used and that the parts may be of any shape to accomplish the desired result.

The skimming device 5 is adjustably sup ported above the top of the concentrating table by securing its horizontal'fianges 7, 8 by means of bolts, or the like, 10 to the bottom faces of two cross bars 11 which have their ends supported by adjustable uprights 12. The latter are shown in the form of screw rods having their ends screw threaded in opposite directions, their lower ends 13 working in nuts 14 arranged in the stationary frame 1 and their upper ends 15 assing through threaded apertures 16 former in the ends of the bars 11. intermediate the ends of these adjusting screws are flattened enlargements 17 which permit them to be readily turned for the purpose of ad'usting the bars 11 and hence the skimming evice. In order to revent any of the pulp and slime passing own the concentrating table from passing around the ends of the deflector arms 5 as-said table is oscillated or reci rocated and to preventthemovement of t e same vide strips 18 of flexible metal, rubber, or the like, between the movable frame 2 and the ends of the arms 5, as clearly shown in Fig. 1. I ma also employ supplemental deflectors 19 for ireoting the pulp and slimes toward the center of the concentrating table. These deflectors 19 are preferablyin the form of strips of Wood sup orted above the table and connected to the movable frame 2 by spring plates 20 or any other resilient fastening means.

The slimes passing through the spout 6 are discharged from its outer end into a spout or launder 21 which directs it into a suitable settling box or tank 22. The latter is here shown in the form of a rectangular box having a discharge spout 23 at one of its ends centrator and that when once applied.

and having the spout 21 arranged to discharge the slime into' .its opposite end. Arranged vertically in the tank or box are one or more vertical win s or partitions 24 which have their lower ends spaced from the bottom of the tank so thatthe slimesin order to pass out of the discharge 23, must drop to the bottom of the tank, thus insuring a complete settling.

The operation of the invention will be readily understood from the foregoing description. It will be noted that the device may be readily applied to any form of conit may be readily adjusted so that the eflector arms 5 will skim the desired quantity of slime from the pulp. The device is especially designed forsaving slimes containing valuable minerals or chemical substances, which owing to their tendency to float on or near the surface of the pulp are'carried away by the slime and are not saved by the concentrating devices now in use.

Having thus described my invention what I claim and desire to secure by Letters Patcut is 1. The combination of a stationary frame, a movable frame, a concentrator table arranged upon said movable frame, a pair of cross bars arran ed above the table-and having their ends 'ormed with threaded apertures, nuts arranged upon the main frame, upright screw rods having centrally arranged flattened enlargements and oppositely screw threaded ends, their upper ends being engaged with apertures in the cross bars and their lower ends with said nuts, a slime skimming device arranged above the table and having a Y-shaped body, one of its branches being trough shaped to provide a discharge spent and its other two branches being angu- 2. The combination with a movable oreconcentrator frame and. its table, of astationary slime skimming device and a flexible ele ment between one end. of said device and said concentrator for preventing the pul u on the table from passing around said en of the skimming device. t i

3. The combination with a movable ore concentrator frame and its table,- of astationary frame, a slime skimming device carried by said stationary frame and arranged above said table, and a deflector carried by said stationary frame and arranged above the table to direct the pulp thereon. into said skimming device.

e. The combination with a movable ore concentrator frame and its table, of astationary frame, a slime skimming device carried by said stationary frame and arranged above said table, and a deflector yieldably connect ed to said stationary frame and arranged above the table in advance of said skimming device todirect the pulp upon the tableinto said device.

5. The combination with a concentrator having a stationary frame and a movable frame carrying a'concentrating table, of a slime skimming device to co-act with said table, said device having a spout and diverging deflector arms, means for supporting said device from said stationary frame and flexible connections between the ends of said deilector arms and said movable frame.

6. The combination with a concentrator having a stationary frame and a movable frame carrying a concentrating table, of a slime skimming device to co-act with said table, said device having a spout and diverging deflector arms, means for supporting said device upon said stationary frame anddeflectors carried by said movable frame for directing the pulp between said diverging de- Hector arms.

In testimony whereof I hereunto aihx my signature in presence of two witnesses.

BERT E. DUGGAN.

Witnesses LILLIAN Muivcnu, ill. L. BnowN. 

